Company lists · Data refreshed September 2026

Top 23 Customer service consulting companies based in New York, United States

RevenueBase identified 227 customer service consulting companies headquartered in New York, United States as of September 2026 and tracks 2,354 professional contacts across them, including 448 with verified work emails. New York is the largest hub.

This list covers customer service consulting companies headquartered in New York, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
227Companies
2,354Contacts tracked
448Verified emails
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The 23 largest customer service consulting companies based in New York, United States

Ranked by team size
Top 23 of 227 customer service consulting companies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to customer service consulting companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 2026201-500122 contacts →

Partial evidence

“Tefen is an international management consulting firm, committed to driving organizations towards achieving performance excellence.”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5054 contacts →

Partial evidence

“OGC is a boutique research and consulting firm specializing in data-driven strategy, innovation testing, and CX program design and optimization.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 202651-20051 contacts →

Partial evidence

“Whether it's your people, your processes or your strategy, ICMI wants to partner with you to take your customer service to the next level.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceNew York, United StatesHQ checked Sep 19, 202651-20049 contacts →

Indirect evidence

“Curious Rubik is a multidisciplinary team of consultants and solution design experts.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202651-20029 contacts →

Indirect evidence

“MNK Group is an independent business and technology consultancy, specializing in providing multifaceted organizations with Business Analysis, Project Management, and Strategy…”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202651-20027 contacts →

Indirect evidence

“G & CO.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5019 contacts →

Indirect evidence

“We advise clients on all facets of brand strategy, marketing communications and design.”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 20261-1017 contacts →

Partial evidence

“Our roots and core strengths are in retail consulting, every aspect of retailing.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5015 contacts →

Indirect evidence

“Employment Practices Group LLC combines business, legal and human resource expertise offering strategic HR counsel to companies during times of change and growth.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceNew York, United StatesHQ checked Sep 19, 202611-5015 contacts →

Indirect evidence

“At Geigsen, our mission is to help organizations bring strategy to life through people.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5014 contacts →

Indirect evidence

“We are a group of enterprising consultants and industry experts who specialize in advising organizations in the telecommunications and financial services industries.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5014 contacts →

Indirect evidence

“JBH Advisory Group is comprised of seasoned professionals with a deep and unique understanding within the hospitality, contract services and support services sectors.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceNew York, United StatesHQ checked Sep 19, 202611-5014 contacts →

Indirect evidence

“After achieving a great deal of success in transformational Healthcare and Retail Services around the globe, we have decided to alter direction.”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5013 contacts →

Partial evidence

“Microcomputer Consulting Group, Inc.(MCG) is an organization of business- savvy technology experts.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5012 contacts →

Indirect evidence

“Oxer Technologies was formed in 1997 by senior technology executives from a variety of backgrounds, united in a singular mission: to build a company that focused as much on…”

Source: RevenueBase Database · checked Sep 19, 2026
16Partial evidenceNew York, United StatesHQ checked Sep 19, 20261-1011 contacts →

Partial evidence

“For most companies, customer experience is an afterthought.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-505 contacts →

Indirect evidence

“NeXus Digital Group is a novel strategic consultancy and full-service provider that enables companies of every distinction to transform and accelerate their marketing and…”

Source: RevenueBase Database · checked Sep 19, 2026
18Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-504 contacts →

Partial evidence

“Management Consulting & Advisory firm established in 2012 Harnessing modern culture through creative, data and technology Strategic consulting to brands and agencies Marketing…”

Source: RevenueBase Database · checked Sep 19, 2026
19Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-504 contacts →

Partial evidence

“We believe that effective consulting goes beyond simply offering advice-it’s about collaboration, innovation, and achieving shared success.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

“We work closely with small- and mid-cap executive teams at moments of growth, change, and opportunity.”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 20261-104 contacts →

Partial evidence

“Who we are: Integrev is a Strategy, Technology, and Revenue Operations consulting company What we do: We navigate companies through their growth by co-creating solutions that…”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-504 contacts →

Partial evidence

“MindStorm is a New York City based consulting, coaching, and training firm catering to small and mid-size companies across the globe.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 23 of 227 customer service consulting companies based in New York, United States

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Customer service consulting companies based in New York, United States at a glance

As of Sep 19, 2026
19.0%Verified-email coverage
10.4Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
149
11-50
52
51-200
14
201-500
8
1,001-5,000
2
10001+
1

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 227 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among customer service consulting companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in New York, United States whose own description of what they do matches “customer service consulting companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names customer service consulting companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among customer service consulting companies, and records with no verified work email. Companies headquartered outside New York are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 448 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Customer service consulting companies by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names customer service consulting companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many customer service consulting companies are there based in New York, United States?

RevenueBase identified 227 customer service consulting companies headquartered in New York, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Tefen Management Consulting, headquartered in New York, tops this list with the largest team on record.

Which city has the most customer service consulting companies?

New York leads with 227 headquartered companies, followed by Chicago (148) and Atlanta (143).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 448 verified decision-maker contacts tracked across these 227 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.